Finding the Fourth Proportional to 312,965.67, 469,330.65 and 113,236.68
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Solution
The fourth proportional to 312,965.67, 469,330.65 and 113,236.68 is: 169,812.38
Step by Step Solution
- Step 1: Write the proportion equation
312,965.67 : 469,330.65 = 113,236.68 : x - Step 2: Convert to fraction form
312,965.67/469,330.65 = 113,236.68/x - Step 3: Cross multiply
312,965.67x = 469,330.65 × 113,236.68 - Step 4: Simplify right side
312,965.67x = 53,145,444,628.24 - Step 5: Solve for x
x = 53,145,444,628.24/312,965.67 - Step 6: Final answer
x = 169,812.38
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.